secondary double glazing for sash windows Glazing For Sash Windows
Many homeowners are unable to add new double glazing to their homes, either because of financial limitations or because they reside in listed buildings that restrict any exterior modifications.
Secondary glazing for sash windows is a good alternative that can be put in using a variety of methods.
It is made up of an additional pane of glass within the window frame that blocks cold air from getting into your home, while providing insulation and noise reduction.
Fixed Inserts
If you're considering secondary glazing for your sash windows, there are a variety of styles to choose from. Each offers a unique set of benefits, from increased security to lower condensation. Which one is the best option for you?
The principle behind secondary glazing is to fit an extra pane of glass into your existing window frame. This provides an additional layer of soundproofing and insulation which can significantly improve the energy efficiency of your home.
However it's not always possible to add double-glazed windows to your home particularly if you live in a listed structure or are subject to strict regulations regarding planning which dictate what can and cannot be done to your exterior.
Secondary glazing is a great alternative in these circumstances. It can be set up quite easily. It's also a popular choice for people looking to update their period property without having to take down the original sash windows (next page) and replace them with contemporary ones.
There are a variety of different systems available for secondary glazing sash style double glazed windows windows, each one of can be customized to fit your existing frame. Proprietary systems typically have painted aluminium frames that are designed to fit into the depth of a staff bead on an existing sash window, meaning that shutters and sills are still able to be used.
They can be equipped using a variety of methods for installation, including glazing clips or Velcro. These are more appealing than screw-fixed ones and are best suited for windows that don't need to be opened frequently. You can also select an unfixed lift-out unit that can be easily lifted out and reinstalled to allow you to open your windows.
Horizontal Sliders
Horizontal Sliders provide excellent thermal insulation and are the most sought-after option for enhancing existing sash windows. They are also discreet and are ideal for historic homes as well as conservation areas and listed property. They can be installed with the need for access from outside as they are operated from inside.
They can be operated by hand, and they can be left open or partially opened for ventilation. They are effective at keeping out draughts, and also block harmful UV light. In summer they can be utilized together with a flyscreen to keep out insects and mosquitoes.
Our Trackglaze horizontal sliding systems offer all the benefits of modern double glazing to your original sash windows. It consists of PVC double sliding tracks on all four sides of the cavity, the simple bristle seal that is placed around each glass sheet and finger pull angle handles that serve as handles and reduce bowing. It comes in kits of 1m or 2m of track and angle that can be put together to create larger spans.
The acoustic benefits of secondary glazing are significant and can dramatically enhance noise reduction from outside especially road, rail & airport traffic. The addition of toughened or laminated glass can further improve acoustic performance. Secondary glazing that is standard reduces outside noise to 52dB (Rw) and specialist glass, such as Stadip Silence Laminated Acoustic Glass can provide even more impressive levels of acoustic efficiency.
It can boost the energy efficiency of your home by keeping it warmer longer. This will reduce your reliance on central heat. It's much less expensive than replacing your old sash windows and is installed almost everywhere without the need to take out the window or door frame.
Vertical Sliders
Secondary glazing is a cost-effective choice that is typically more manageable than a complete window replacement. It's also suitable for Listed Buildings & Conservation Areas. It's the ideal option for upgrading traditional sash window replacement near me windows in Suffolk & Essex with modern insulation benefits while keeping the character of older homes.
Vertical Sliders are specially designed for sash windows where regular hinged panels aren't suitable. The system has two secondary sashes that are secured one over the other within an outer frame. They are supported by spring balances to allow for ease of movement. The system is available as a 'face-fixed' (installed to the inside of the window) for improved thermal performance, or a'reveal fixed version that has a glass-to-glass cavity within the window's original reveal, for optimum acoustic performance.
You can pick from a variety of handles and stop-strips to suit your preferences. They can be fixed in the closed position to provide additional security or propped open for ventilation on the glass's top or bottom. They can also be equipped with an insulating bristle sealing device to prevent draughts.
Imagine vertical sliders in 'Choices' secondary glazing comes with all the authentic timber detailing you'd expect from an antique window treatment. It's available in an array of colours to match your existing sash. It is almost impossible to distinguish from the original sash windows, since details like sash horns as well as traditional butt joints are integrated into the design. It comes in a variety of sizes and can accept glass up to 6.8mm to provide additional insulation against loss of heat. A tilt-in option is also available allowing the individual sashes of the frame to hinge inward on safety stays for easier cleaning.
Hinged Casement
Our single-pane hinged secondary glazing can be fitted to sash windows of any style including casement and traditional box sash. The hinged units we offer are made with a secure multi-point locking system and are available with keys and a handle for the lock. This combination ensures that the glazed panel is securely locked in place and is pulled tightly to the outer frame, creating a seal to minimize loss of heat. Hinged windows are available either top or side-hung and can also be made by double-glazing. Our double-glazed Windows provide enhanced performance in terms of acoustics and are available in 43dB (for 47dB), 51dB (for 51dB) or 47dB (for 49dB).
Unlike horizontal sash windows, with movable sashes that slide horizontally within the frame casement windows can open outward and capture breezes from different angles. They can also be opened from both the top and bottom to provide controlled airflow. This is why they can help improve airflow and offer an effective alternative to traditional sash windows.
They are used in modern homes due to their narrow "sightlines" which allow for unobstructed view, but they can also be installed in listed buildings since they don't require transoms and mullions. They can also be used in areas that are difficult to access since they can be opened by turning the handle.
The primary drawback to this type of window is that it can block large openings and may restrict the use of certain window treatments. They can also be difficult to clean because they swing outward, and could require regular maintenance and service.
Lift Out Windows
Secondary glazing can be set up using a variety ways and the cost will vary according to the type, thickness and materials you choose for your frames and panes. uPVC windows are usually the most affordable, followed by aluminium and then wooden window frames. Specialised glass, as well any extra features such as security or sound reduction may also increase prices.
The complexity of the installation will influence the cost. The more complicated the project will take longer and more labour will be required. This can also apply to older homes with more intricate sash windows that require expertise and knowledge.
The best way to start is to evaluate the condition of your existing windows. Having them surveyed by an experienced professional will give you an accurate estimate of what the price could be.
In general, secondary glazing has an insignificant impact on the appearance of your home. This is due to the fact that modern FINEO double glazing is slim and discrete frames, meaning you can achieve thermal efficiency without sacrificing aesthetics.
A popular option for secondary glazing is horizontal sliding, which allows easy access to your existing sash windows for cleaning or ventilation. It is also possible to get them with a tilt feature, which is activated by unlocking the catch on the secondary glazing panel and lifting it vertically to a set point. This is perfect for windows that aren't opened very often. It can also be used to allow air conditioning access in bay windows. You can even use them to open up the middle sash of an old-fashioned sash bay window to create a more uniform look.